package federation

import (
	"context"
	"encoding/json"
	"net/http"
	"net/http/httptest"
	"orchestra/internal/domain"
	"testing"
)

func TestClientRegistersPollsAndReadsArtifactAsWorker(t *testing.T) {
	seen := map[string]bool{}
	s := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		if r.URL.Path == "/v1/federation/workers" {
			seen["register"] = r.Header.Get("Authorization") == "Bearer admit"
			w.WriteHeader(http.StatusCreated)
			return
		}
		if r.Header.Get("X-Orchestra-Worker") != "h1" || r.Header.Get("Authorization") != "Bearer worker" {
			t.Errorf("worker auth missing")
		}
		switch r.URL.Path {
		case "/v1/federation/events":
			seen["events"] = true
			_, _ = w.Write([]byte(`{"cursor":3,"events":[{"seq":3,"id":"e","type":"TaskCreated","task_id":"t","version":1,"payload":{"source":"s","external_id":"x","project":"p"},"surface":"system"}]}`))
		case "/v1/artifacts/abc":
			seen["artifact"] = true
			_, _ = w.Write([]byte(`{"meta":{"id":"x"}}`))
		default:
			t.Errorf("unexpected path %s", r.URL.Path)
			w.WriteHeader(404)
		}
	}))
	defer s.Close()
	c := Client{BaseURL: s.URL, WorkerID: "h1", Token: "worker", AdmitToken: "admit"}
	if err := c.Register(context.Background(), Worker{ID: "h1"}); err != nil {
		t.Fatal(err)
	}
	es, cur, err := c.Events(context.Background(), 0)
	if err != nil || cur != 3 || len(es) != 1 || es[0].Type != "TaskCreated" {
		t.Fatalf("events=%v cursor=%d err=%v", es, cur, err)
	}
	b, err := c.Artifact(context.Background(), "abc")
	if err != nil || string(b) != "{\"meta\":{\"id\":\"x\"}}" {
		t.Fatalf("artifact=%s err=%v", b, err)
	}
	for _, k := range []string{"register", "events", "artifact"} {
		if !seen[k] {
			t.Errorf("%s not seen", k)
		}
	}
}

func TestClientReportsTypedLaunchAckAndNack(t *testing.T) {
	seen := map[string]map[string]any{}
	s := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		var body map[string]any
		if err := json.NewDecoder(r.Body).Decode(&body); err != nil {
			t.Fatal(err)
		}
		seen[r.URL.Path] = body
		w.WriteHeader(http.StatusNoContent)
	}))
	defer s.Close()
	c := Client{BaseURL: s.URL, WorkerID: "h1", Token: "worker"}
	if err := c.Start(context.Background(), "task", "epoch", 7, domain.SessionEvidence{PaneID: "p"}); err != nil {
		t.Fatal(err)
	}
	if err := c.NackStart(context.Background(), "task", "epoch", 8, "invalid_handoff", "anchor mismatch", domain.SessionEvidence{PaneID: "p"}); err != nil {
		t.Fatal(err)
	}
	if seen["/v1/federation/workers/h1/start"]["expected_version"] != float64(7) || seen["/v1/federation/workers/h1/nack"]["failure_class"] != "invalid_handoff" {
		t.Fatalf("launch reports=%#v", seen)
	}
}